Scheduling method of sideline positioning reference signal resource and communication device

Abstract

The invention discloses a scheduling method of sidewalk positioning reference signal resources and a communication device, which can realize semi-static scheduling of the sidewalk positioning reference signal resources and is beneficial to saving signaling overhead. The method may comprise: receiving downlink control information from a network device, the downlink control information comprising a first field and a second field; wherein the first field is used for determining a sideline positioning reference signal resource, and the second field is used for indicating to activate or deactivate the sideline positioning reference signal resource; activating the side row positioning reference signal resource in response to the value of the second field; and responding to the value of the second field, and deactivating the side row positioning reference signal resource.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a scheduling method and a communication device for side positioning reference signal resources. Background Art

[0002] Sidelink (SL) is a near-field communication technology that directly connects terminal devices to each other through a PC5 interface. For application scenarios such as vehicle to everything (V2X) and industrial internet of things (IIoT), the 3rd generation partnership project (3GPP) proposed SL positioning, which can be achieved by transmitting a sidelink positioning reference signal. Exemplarily, two terminal devices can achieve mutual positioning, such as ranging or angle measurement, by sending a sidelink positioning reference signal. The sidelink positioning reference signal can also be referred to as a sidelink positioning reference signal.

[0003] The resources used to transmit the sidewalk positioning reference signal may be referred to as the sidewalk positioning reference signal resources. How to implement the semi-static scheduling of the sidewalk positioning reference signal resources is a hot topic in current research. Summary of the invention

[0004] The embodiments of the present application provide a scheduling method and a communication device for side-traffic positioning reference signal resources, which can implement semi-static scheduling of side-traffic positioning reference signal resources, thereby saving signaling overhead.

[0005] In a first aspect, an embodiment of the present application provides a scheduling method for a sideline positioning reference signal resource, which can be executed by a terminal device, or by a device matched with the terminal device, such as a processor, a chip, or a chip system. The method may include: receiving downlink control information from a network device, the downlink control information including a first field and a second field; wherein the first field is used to determine the sideline positioning reference signal resource, and the second field is used to indicate activation or deactivation of the sideline positioning reference signal resource; in response to the value of the second field, activating the sideline positioning reference signal resource; in response to the value of the second field, deactivating the sideline positioning reference signal resource.

[0006] It can be seen that, in combination with the first field and the second field in the downlink control information, the terminal device can activate or deactivate the side positioning reference signal resources, thereby realizing semi-static scheduling of the side positioning reference signal resources, which is beneficial to saving signaling overhead.

[0007] In a possible implementation manner, the second field is an activation indication field, and the field length of the activation indication field is 1 bit;

[0008] The value of the activation indication field is the first value and the side positioning reference signal resource is in an inactivated state, and the activation indication field is used to indicate activation of the side positioning reference signal resource;

[0009] The value of the activation indication field is the second value and the sideline positioning reference signal resource is in an activated state, and the activation indication field is used to indicate deactivation of the sideline positioning reference signal resource; wherein the first value is the same as or different from the second value.

[0010] That is to say, the activation or deactivation of the sideline positioning reference signal resource is indicated by the value of the 1-bit activation indication field, and the sideline positioning reference signal resource is determined based on the first field in the downlink control information, so that the terminal device can activate or deactivate the sideline positioning reference signal resource based on the value of the 1-bit activation indication field. In this way, not only can the semi-static scheduling of the sideline positioning reference signal resource be achieved, but also the indication of activation or deactivation can be achieved with a small signaling overhead.

[0011] In another possible implementation, the second field is an activation indication field, and the field length of the activation indication field is 2 bits;

[0012] The value of the activation indication field is the third value, which is used to indicate the activation of the above-mentioned side positioning reference signal resource; the value of the activation indication field is the fourth value, which is used to indicate the deactivation of the above-mentioned side positioning reference signal resource.

[0013] Optionally, the value of the activation indication field is a third value and the side positioning reference signal resource is in an unactivated state, and the activation indication field is used to indicate activation of the side positioning reference signal resource;

[0014] The value of the activation indication field is the fourth value and the above-mentioned side positioning reference signal resource is in an activated state, and the activation indication field is used to indicate deactivation of the above-mentioned side positioning reference signal resource; wherein the third value is different from the fourth value.

[0015] That is to say, the activation or deactivation of the sideline positioning reference signal resource is indicated by the value of the 2-bit activation indication field, and the sideline positioning reference signal resource is determined based on the first field in the downlink control information, so that the terminal device can activate or deactivate the sideline positioning reference signal resource based on the value of the 2-bit activation indication field. In this way, semi-static scheduling of the sideline positioning reference signal resource can be achieved. When indicating activation or deactivation, the third value and the fourth value of the 2-bit value are used, and other values ​​can be used to indicate other functions, so that the 2-bit value can indicate multiple functions, which is conducive to saving signaling overhead.

[0016] In yet another possible implementation, the second field is a time domain scheduling field;

[0017] The value of the time domain scheduling field is the fifth value, which is used to indicate activation of the above-mentioned side positioning reference signal resources; the value of the time domain scheduling field is the sixth value, which is used to indicate deactivation of the above-mentioned side positioning reference signal resources.

[0018] Optionally, the value of the time domain scheduling field is the fifth value and the side positioning reference signal resource is in an inactivated state, and the time domain scheduling field is used to indicate activation of the side positioning reference signal resource;

[0019] The value of the time domain scheduling field is the sixth value and the above-mentioned side positioning reference signal resource is in an activated state, and the time domain scheduling field is used to indicate deactivation of the above-mentioned side positioning reference signal resource; wherein the fifth value is different from the sixth value.

[0020] Typically, the time domain scheduling field is used to indicate the time domain information of the sideline positioning reference signal resource, such as time slot information. However, in the present application, the time domain scheduling field is also used to indicate the activation or deactivation of the sideline positioning reference signal resource, which is determined based on the first field in the downlink control information. That is, by multiplexing the value of the time domain scheduling field to indicate the activation or deactivation of the sideline positioning reference signal resource, the terminal device can activate the sideline positioning reference signal resource based on the fifth value of the time domain scheduling field; or, deactivate the sideline positioning reference signal resource based on the sixth value of the time domain scheduling field. In this way, not only can the semi-static scheduling of the sideline positioning reference signal resource be achieved, but also the signaling overhead can be saved. There is no need to add an additional field in the downlink control information to indicate activation or deactivation, and the change to the downlink control information is small.

[0021] Optionally, the method further includes: receiving a first parameter and / or a second parameter from a network device, the first parameter being used to indicate the fifth value, and the second parameter being used to indicate the sixth value. That is, the network device configures the first parameter and / or the second parameter for the terminal device, the first parameter being used to indicate that when the value of the time domain scheduling field is the fifth value, the sideline positioning reference signal resource is activated; and the second parameter being used to indicate that when the value of the time domain scheduling field is the sixth value, the sideline positioning reference signal resource is deactivated. The network device configures the first parameter and / or the second parameter for the terminal device, so that the terminal device can determine which value of the time domain scheduling field can activate the sideline positioning reference signal resource, and / or which value can deactivate the sideline positioning reference signal resource. It can be seen that the network device can flexibly configure the first parameter and / or the second parameter.

[0022] Optionally, the fifth value and the sixth value are predefined, for example, predefined by a protocol. That is, when the value of the fixed time domain scheduling field is the fifth value, it indicates activation of the sideline positioning reference signal resource; when the value of the fixed time domain scheduling field is the sixth value, it indicates deactivation of the sideline positioning reference signal resource. Compared with the network device configuring the first parameter and / or the second parameter for the terminal device, signaling and wireless resources can be saved.

[0023] In yet another possible implementation, the second field is a resource indication field;

[0024] The value of the resource indication field is the seventh value or the first group of values, which is used to indicate the activation of the above-mentioned side positioning reference signal resources; the value of the resource indication field is the eighth value or the second group of values, which is used to indicate the deactivation of the above-mentioned side positioning reference signal resources.

[0025] Optionally, the value of the resource indication field is the seventh value or the first group of values ​​and the side positioning reference signal resource is in an inactivated state, and the resource indication field is used to indicate activation of the side positioning reference signal resource;

[0026] The value of the resource indication field is the eighth value or the second group of values ​​and the above-mentioned side positioning reference signal resources are in an activated state, and the resource indication field is used to indicate the deactivation of the above-mentioned side positioning reference signal resources; wherein the seventh value is different from the eighth value, the first group of values ​​includes one or more values, and the second group of values ​​includes one or more values.

[0027] Typically, the resource indication field is used to indicate the index of the scheduled side positioning reference signal resource. However, in the present application, the resource indication field is also used to indicate the activation or deactivation of the side positioning reference signal resource. That is to say, by multiplexing the value of the resource indication field to indicate the activation or deactivation of the side positioning reference signal resource, the terminal device can activate or deactivate the side positioning reference signal resource based on the value of the resource indication field. In this way, not only can the semi-static scheduling of the side positioning reference signal resource be achieved, but also the signaling overhead can be saved. There is no need to add an additional field in the downlink control information to indicate activation or deactivation, and the change to the downlink control information is small.

[0028] Optionally, the i-th sideline positioning reference signal resource index indicated by the resource indication field is the ninth value or the third group value, which is specifically used to indicate activation of the above-mentioned sideline positioning reference signal resource; the i-th sideline positioning reference signal resource index indicated by the resource indication field is the tenth value or the fourth group value, which is specifically used to indicate deactivation of the above-mentioned sideline positioning reference signal resource; wherein i is an integer greater than 1, the third group value includes one or more values, and the fourth group value includes one or more values. It can be understood that when multiple sideline positioning reference signal resources are semi-statically scheduled, the i-th sideline positioning reference signal resource index defaults to the same as the first sideline positioning reference signal resource index, but the i-th sideline positioning reference signal resource index indicated by the resource indication field is used to indicate activation or deactivation of the sideline positioning reference signal resource.

[0029] Optionally, the method further includes: receiving a third parameter and / or a fourth parameter from a network device, the third parameter being used to indicate the ninth value or the third group of values, and the fourth parameter being used to indicate the tenth value or the fourth group of values. That is, the network device configures the third parameter and / or the fourth parameter for the terminal device, the third parameter being used to indicate that when the value of the resource indication field is the ninth value or the third group of values, the side positioning reference signal resource is activated; and the fourth parameter being used to indicate that when the value of the resource indication field is the tenth value or the fourth group of values, the side positioning reference signal resource is deactivated. The network device configures the third parameter and / or the fourth parameter for the terminal device, so that the terminal device can determine which value of the resource indication field can activate the side positioning reference signal resource, and / or which value can deactivate the side positioning reference signal resource. It can be seen that the network device can flexibly configure the third parameter and / or the fourth parameter.

[0030] Optionally, the ninth value and the tenth value are predefined, for example, predefined by a protocol. Alternatively, the third group of values ​​and the fourth group of values ​​are predefined. That is, when the value of the fixed resource indication field is the ninth value or the third group of values, it indicates activation of the side positioning reference signal resource; when the value of the fixed resource indication field is the tenth value or the fourth group of values, it indicates deactivation of the side positioning reference signal resource. Compared with the network device configuring the third parameter and / or the fourth parameter for the terminal device, signaling and wireless resources can be saved.

[0031] In a possible implementation, the first field is a resource indication field, which is used to indicate the index of the sideline positioning reference signal resource, that is, to indicate the sideline positioning reference signal resource, so that the terminal device can determine the sideline positioning reference signal resource based on the value of the resource indication field.

[0032] Optionally, the downlink control information further includes a configuration index field, which is used to indicate a configuration index, based on which the transmission period and / or maximum number of transmissions of the sidelink positioning reference signal resource can be determined. The configuration index field is used to indicate a configuration index, based on which semi-static configuration information can be determined, the semi-static configuration information including the transmission period and / or maximum number of transmissions.

[0033] Optionally, the method further includes: receiving a first radio resource control (RRC) signaling from a network device, the first RRC signaling being used to configure a transmission period and / or a maximum number of transmissions of a sideline positioning reference signal resource. It is understandable that the first RRC signaling is used to configure semi-static configuration information, the semi-static configuration information including the transmission period and / or the maximum number of transmissions.

[0034] In another possible implementation, the first field is a configuration index field, the configuration index field is used to indicate a configuration index, and the configuration index is associated with a sideline positioning reference signal resource. That is, based on the configuration index field, the sideline positioning reference signal resource associated with the configuration index, i.e., the sideline positioning reference signal resource of semi-static scheduling, can be determined. Compared with determining the sideline positioning reference signal resource based on the resource indication field in the downlink control information, the bit length of the downlink control information is shorter when the sideline positioning reference signal resource is determined based on the configuration index in the downlink control information.

[0035] Optionally, the configuration index field is also used to determine the transmission period and / or maximum number of transmissions of the side positioning reference signal resource. The terminal device can also determine the transmission period and / or maximum number of transmissions of the side positioning reference signal resource based on the configuration index indicated by the configuration index field.

[0036] Optionally, the method further includes: receiving a second RRC signaling from a network device, the second RRC signaling being used to configure at least one of a transmission period, a maximum number of transmissions, and a sideline positioning reference signal resource associated with a configuration index. It is understandable that the second RRC signaling is used to configure semi-static configuration information, the semi-static configuration information including at least one of a transmission period, a maximum number of transmissions, a configuration index, and a sideline positioning reference signal resource associated with a configuration index.

[0037] In a second aspect, an embodiment of the present application provides a scheduling method for a sideline positioning reference signal resource, which can be executed by a network device, or by a device matching the network device, such as a processor, a chip, or a chip system. The method may include: sending downlink control information to a terminal device, the downlink control information including a first field and a second field; wherein the first field is used to determine the sideline positioning reference signal resource; and the second field is used to indicate activation or deactivation of the positioning reference signal resource.

[0038] It can be seen that the network device instructs the terminal device to activate or deactivate the side positioning reference signal resources through the first field and the second field in the downlink control information, thereby realizing semi-static scheduling of the side positioning reference signal resources, which is beneficial to saving signaling overhead.

[0039] In a possible implementation manner, the second field is an activation indication field, and the field length of the activation indication field is 1 bit;

[0040] The value of the activation indication field is the first value and the side positioning reference signal resource is in an inactivated state, and the activation indication field is used to indicate activation of the side positioning reference signal resource;

[0041] The value of the activation indication field is the second value and the sideline positioning reference signal resource is in an activated state, and the activation indication field is used to indicate deactivation of the sideline positioning reference signal resource; wherein the first value is the same as or different from the second value.

[0042] That is to say, the activation or deactivation of the sideline positioning reference signal resource is indicated by the value of the 1-bit activation indication field, and the sideline positioning reference signal resource is determined based on the first field in the downlink control information, so that the terminal device can activate or deactivate the sideline positioning reference signal resource based on the value of the 1-bit activation indication field. In this way, not only can the semi-static scheduling of the sideline positioning reference signal resource be achieved, but also the indication of activation or deactivation can be achieved with a small signaling overhead.

[0043] In another possible implementation, the second field is an activation indication field, and the field length of the activation indication field is 2 bits;

[0044] The value of the activation indication field is the third value, which is used to indicate the activation of the above-mentioned side positioning reference signal resource; the value of the activation indication field is the fourth value, which is used to indicate the deactivation of the above-mentioned side positioning reference signal resource.

[0045] Optionally, the value of the activation indication field is a third value and the side positioning reference signal resource is in an unactivated state, and the activation indication field is used to indicate activation of the side positioning reference signal resource;

[0046] The value of the activation indication field is the fourth value and the above-mentioned side positioning reference signal resource is in an activated state, and the activation indication field is used to indicate deactivation of the above-mentioned side positioning reference signal resource; wherein the third value is different from the fourth value.

[0047] That is to say, the activation or deactivation of the sideline positioning reference signal resource is indicated by the value of the 2-bit activation indication field, and the sideline positioning reference signal resource is determined based on the first field in the downlink control information, so that the terminal device can activate or deactivate the sideline positioning reference signal resource based on the value of the 2-bit activation indication field. In this way, semi-static scheduling of the sideline positioning reference signal resource can be achieved. When indicating activation or deactivation, the third value and the fourth value of the 2-bit value are used, and other values ​​can be used to indicate other functions, so that the 2-bit value can indicate multiple functions, which is conducive to saving signaling overhead.

[0048] In yet another possible implementation, the second field is a time domain scheduling field;

[0049] The value of the time domain scheduling field is the fifth value, which is used to indicate activation of the above-mentioned side positioning reference signal resources; the value of the time domain scheduling field is the sixth value, which is used to indicate deactivation of the above-mentioned side positioning reference signal resources.

[0050] Optionally, the value of the time domain scheduling field is the fifth value and the side positioning reference signal resource is in an inactivated state, and the time domain scheduling field is used to indicate activation of the side positioning reference signal resource;

[0051] The value of the time domain scheduling field is the sixth value and the above-mentioned side positioning reference signal resource is in an activated state, and the time domain scheduling field is used to indicate deactivation of the above-mentioned side positioning reference signal resource; wherein the fifth value is different from the sixth value.

[0052] Typically, the time domain scheduling field is used to indicate the time domain information of the sideline positioning reference signal resource, such as time slot information. However, in the present application, the time domain scheduling field is also used to indicate the activation or deactivation of the sideline positioning reference signal resource, which is determined based on the first field in the downlink control information. That is, by multiplexing the value of the time domain scheduling field to indicate the activation or deactivation of the sideline positioning reference signal resource, the terminal device can activate the sideline positioning reference signal resource based on the fifth value of the time domain scheduling field; or, deactivate the sideline positioning reference signal resource based on the sixth value of the time domain scheduling field. In this way, not only can the semi-static scheduling of the sideline positioning reference signal resource be achieved, but also the signaling overhead can be saved. There is no need to add an additional field in the downlink control information to indicate activation or deactivation, and the change to the downlink control information is small.

[0053] Optionally, the method further includes: sending a first parameter and / or a second parameter to the terminal device, the first parameter being used to indicate the fifth value, and the second parameter being used to indicate the sixth value. That is, the network device configures the first parameter and / or the second parameter for the terminal device, the first parameter being used to indicate that when the value of the time domain scheduling field is the fifth value, the sideline positioning reference signal resource is activated; and the second parameter being used to indicate that when the value of the time domain scheduling field is the sixth value, the sideline positioning reference signal resource is deactivated. The network device configures the first parameter and / or the second parameter for the terminal device, so that the terminal device can determine which value of the time domain scheduling field can activate the sideline positioning reference signal resource, and / or which value can deactivate the sideline positioning reference signal resource. It can be seen that the network device can flexibly configure the first parameter and / or the second parameter.

[0054] Optionally, the fifth value and the sixth value are predefined, for example, predefined by a protocol. That is, when the value of the fixed time domain scheduling field is the fifth value, it indicates activation of the sideline positioning reference signal resource; when the value of the fixed time domain scheduling field is the sixth value, it indicates deactivation of the sideline positioning reference signal resource. Compared with the network device configuring the first parameter and / or the second parameter for the terminal device, signaling and wireless resources can be saved.

[0055] In yet another possible implementation, the second field is a resource indication field;

[0056] The value of the resource indication field is the seventh value or the first group of values, which is used to indicate the activation of the above-mentioned side positioning reference signal resources; the value of the resource indication field is the eighth value or the second group of values, which is used to indicate the deactivation of the above-mentioned side positioning reference signal resources.

[0057] Optionally, the value of the resource indication field is the seventh value or the first group of values ​​and the side positioning reference signal resource is in an inactivated state, and the resource indication field is used to indicate activation of the side positioning reference signal resource;

[0058] The value of the resource indication field is the eighth value or the second group of values ​​and the above-mentioned side positioning reference signal resources are in an activated state, and the resource indication field is used to indicate the deactivation of the above-mentioned side positioning reference signal resources; wherein the seventh value is different from the eighth value, the first group of values ​​includes one or more values, and the second group of values ​​includes one or more values.

[0059] Typically, the resource indication field is used to indicate the index of the scheduled sideline positioning reference signal resource, such as the index of the semi-statically scheduled sideline positioning reference signal resource. However, in the present application, the resource indication field is also used to indicate the activation or deactivation of the sideline positioning reference signal resource. That is, by multiplexing the value of the resource indication field to indicate the activation or deactivation of the sideline positioning reference signal resource, the terminal device can activate or deactivate the sideline positioning reference signal resource based on the value of the resource indication field. In this way, not only can the semi-static scheduling of the sideline positioning reference signal resource be achieved, but also the signaling overhead can be saved. There is no need to add an additional field in the downlink control information to indicate activation or deactivation, and the change to the downlink control information is small.

[0060] Optionally, the i-th sideline positioning reference signal resource index indicated by the resource indication field is the ninth value, which is specifically used to indicate activation of the above-mentioned sideline positioning reference signal resource; the i-th sideline positioning reference signal resource index indicated by the resource indication field is the tenth value, which is specifically used to indicate deactivation of the above-mentioned sideline positioning reference signal resource; wherein i is an integer greater than 1, the third group of values ​​includes one or more values, and the fourth group of values ​​includes one or more values. It can be understood that when multiple sideline positioning reference signal resources are semi-statically scheduled, the i-th sideline positioning reference signal resource index defaults to the same as the first sideline positioning reference signal resource index, but the i-th sideline positioning reference signal resource index indicated by the resource indication field is used to indicate activation or deactivation of the sideline positioning reference signal resource.

[0061] Optionally, the method further includes: sending a third parameter and / or a fourth parameter to the terminal device, the third parameter being used to indicate the ninth value or the third group of values, and the fourth parameter being used to indicate the tenth value or the third group of values. That is, the network device configures the third parameter and / or the fourth parameter for the terminal device, the third parameter being used to indicate that when the value of the resource indication field is the ninth value or the third group of values, the side positioning reference signal resource is activated; and the fourth parameter being used to indicate that when the value of the resource indication field is the tenth value or the fourth group of values, the side positioning reference signal resource is deactivated. The network device configures the third parameter and / or the fourth parameter for the terminal device, so that the terminal device can determine which value of the resource indication field can activate the side positioning reference signal resource, and / or which value can deactivate the side positioning reference signal resource. It can be seen that the network device can flexibly configure the third parameter and / or the fourth parameter.

[0062] Optionally, the ninth value and the tenth value are predefined, for example, predefined by a protocol. Alternatively, the third group of values ​​and the fourth group of values ​​are predefined. That is, when the value of the fixed resource indication field is the ninth value or the third group of values, it indicates activation of the side positioning reference signal resource; when the value of the fixed resource indication field is the tenth value or the fourth group of values, it indicates deactivation of the side positioning reference signal resource. Compared with the network device configuring the third parameter and / or the fourth parameter for the terminal device, signaling and wireless resources can be saved.

[0063] In a possible implementation, the first field is a resource indication field, which is used to indicate the index of the sideline positioning reference signal resource, that is, to indicate the sideline positioning reference signal resource, so that the terminal device can determine the sideline positioning reference signal resource based on the value of the resource indication field.

[0064] Optionally, the downlink control information further includes a configuration index field, which is used to indicate a configuration index, based on which the transmission period and / or maximum number of transmissions of the sidelink positioning reference signal resource can be determined. The configuration index field is used to indicate a configuration index, based on which semi-static configuration information can be determined, the semi-static configuration information including the transmission period and / or maximum number of transmissions.

[0065] Optionally, the method further includes: sending a first RRC signaling to the terminal device, the first RRC signaling being used to configure the transmission period and / or the maximum number of transmissions of the sideline positioning reference signal resource. It is understandable that the first RRC signaling is used to configure semi-static configuration information, the semi-static configuration information including the transmission period and / or the maximum number of transmissions.

[0066] In another possible implementation, the first field is a configuration index field, the configuration index field is used to indicate a configuration index, and the configuration index is associated with a sideline positioning reference signal resource. That is, based on the configuration index field, the sideline positioning reference signal resource associated with the configuration index, i.e., the sideline positioning reference signal resource of semi-static scheduling, can be determined. Compared with determining the sideline positioning reference signal resource based on the resource indication field in the downlink control information, the bit length of the downlink control information is shorter when the sideline positioning reference signal resource is determined based on the configuration index in the downlink control information.

[0067] Optionally, the configuration index field is also used to determine the transmission period and / or maximum number of transmissions of the side positioning reference signal resource. The terminal device can also determine the transmission period and / or maximum number of transmissions of the side positioning reference signal resource based on the configuration index indicated by the configuration index field.

[0068] Optionally, the method further includes: sending a second RRC signaling to the terminal device, the second RRC signaling is used to configure at least one of a transmission period, a maximum number of transmissions, and a side positioning reference signal resource associated with a configuration index. It can be understood that the second RRC signaling is used to configure semi-static configuration information, and the semi-static configuration information includes at least one of a transmission period, a maximum number of transmissions, a configuration index, and a side positioning reference signal resource associated with a configuration index.

[0069] In a third aspect, an embodiment of the present application provides a communication device, which may be a terminal device, or a device in a terminal device, or a device that can be used in combination with a terminal device. Among them, the communication device may also be a chip system. The communication device may execute the method described in the first aspect. The functions of the communication device may be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more units or modules corresponding to the above functions. The unit or module may be software and / or hardware. The operations and beneficial effects performed by the communication device may refer to the method and beneficial effects described in the first aspect above.

[0070] In a fourth aspect, an embodiment of the present application provides a communication device, which may be a network device, or a device in a network device, or a device that can be used in combination with a network device. The communication device may also be a chip system. The communication device may execute the method described in the second aspect. The functions of the communication device may be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more units or modules corresponding to the above functions. The unit or module may be software and / or hardware. The operations and beneficial effects performed by the communication device may refer to the method and beneficial effects described in the second aspect above.

[0071] In a fifth aspect, an embodiment of the present application provides a communication device, the communication device comprising a processor, the processor being used to execute the method as described in the first aspect or the method as described in the second aspect.

[0072] In a sixth aspect, an embodiment of the present application provides a communication device, comprising a processor, the processor being coupled to a memory, the memory being used to store programs or instructions, and when the programs or instructions are executed by the processor, the communication device executes the method described in the first aspect or the second aspect.

[0073] In a possible implementation, the communication device further includes a memory. Optionally, the processor and the memory are integrated together. Optionally, the memory and the processor are independently configured.

[0074] In the seventh aspect, an embodiment of the present application provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method described in the first aspect or the second aspect through a logic circuit or executing code instructions.

[0075] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instructions are stored. When the computer program or instructions are executed by a communication device, the method described in the first aspect or the second aspect is implemented.

[0076] In a ninth aspect, an embodiment of the present application provides a computer program product comprising instructions, and when a communication device reads and executes the instructions, the communication device executes a method as described in any one of the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] Figure 1 It is a schematic diagram of a SL resource pool;

[0078] Figure 2 is a schematic diagram of a network architecture to which an embodiment of the present application is applied;

[0079] Figure 3 is a schematic diagram of another network architecture to which an embodiment of the present application is applied;

[0080] Figure 4 It is a flowchart of a method for scheduling SL PRS resources provided in an embodiment of the present application;

[0081] Figure 5 It is a schematic diagram of data block transmission;

[0082] Figure 6 is a schematic diagram of SL PRS transmission;

[0083] Figure 7 It is a configuration diagram of RRC signaling;

[0084] Figure 8 is a structural diagram of a communication device provided in an embodiment of the present application;

[0085] Fig. 9 It is a structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0086] In the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit them to be different. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previously associated objects are in an "or" relationship.

[0087] It should be understood that in this application, "at least one" means one or more; "plurality" means two or more. In addition, "equal to" in this application can be used in conjunction with "greater than" or "less than". When "equal to" is used in conjunction with "greater than", the technical solution of "greater than" is adopted; when "equal to" is used in conjunction with "less than", the technical solution of "less than" is adopted.

[0088] In the present application, "sending information to... (e.g., a terminal device)" can be understood as the destination of the information being the terminal device. This can include sending information to the terminal device directly or indirectly. "Receiving information from... (e.g., a terminal device)" or "receiving information from... (e.g., a terminal device)" can be understood as the source of the information being the terminal device, which can include receiving information from the terminal device directly or indirectly. The information may be processed as necessary between the source and destination of the information, such as format changes, but the destination can understand the valid information from the source. Similar expressions in the present application can be understood similarly and will not be repeated here.

[0089] The following is an explanation of the relevant names or terms involved in this application to facilitate understanding by those skilled in the art.

[0090] 1. Terminal equipment

[0091] Terminal equipment can also be called user equipment (UE), mobile station (MS), mobile terminal (MT), etc., or equipment used to provide voice or data connectivity to users, or IoT devices. For example, terminal equipment includes handheld devices with wireless connection functions, vehicle-mounted devices, etc. At present, terminal devices can be: mobile phones, tablet computers, laptops, PDAs, mobile internet devices (MID), wearable devices (such as smart watches, smart bracelets, pedometers, etc.), vehicle-mounted devices (such as cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed trains, etc.), satellite terminals, virtual reality (VR) devices, augmented reality (AR) devices, smart point of sale (POS) machines, customer-premises equipment (CPE), wireless terminals in industrial control, smart home devices (such as refrigerators, TVs, air conditioners, electric meters, etc.), smart robots, robotic arms, workshop equipment, wireless terminals in unmanned driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, flight equipment (such as smart robots, hot air balloons, drones, airplanes), etc. The terminal device can also be other devices with terminal functions, for example, the terminal device can also be a device that serves as a terminal function in D2D communication.

[0092] 2. Network equipment

[0093] The network device is a node in the radio access network (RAN), which can also be called an access network device, or a RAN node (or device). The network device is used to help terminal devices achieve wireless access. In one possible scenario, the network device can be a base station, an evolved NodeB (eNodeB), a transmitting and receiving point (TRP), a transmitting point (TP), a next generation NodeB (gNB), a next generation base station in a 6G system, a base station in a future mobile communication system, a satellite, an integrated access and backhaul (IAB) node, an access network device in a mobile switching center non-terrestrial network (NTN) communication system, that is, it can be deployed on a high altitude platform or satellite, etc. The network device can be a macro base station, a micro base station or an indoor station, a relay node or a donor node, or a wireless controller in a cloud radio access network (CRAN) scenario. The network device may also be a device that acts as a base station in device-to-device (D2D) communication, Internet of Vehicles communication, drone communication, and machine communication. Optionally, the network device may also be a server, a wearable device, a vehicle or an onboard device, etc. For example, the network device in vehicle to everything (V2X) technology may be a road side unit (RSU).

[0094] All or part of the functions of the network device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform). The network device in this application can also be a logical node, logical module or software that can implement all or part of the network device functions.

[0095] In another possible scenario, multiple network devices collaborate to assist the terminal in achieving wireless access, and different network devices respectively implement part of the functions of the base station. For example, the network device may be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU may be set separately, or may be included in the same network element, such as a baseband unit (BBU). The RU may be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). It is understandable that the network device may be a CU node, a DU node, or a device including a CU node and a DU node. In addition, the CU may be divided into a network device in the access network RAN, or the CU may be divided into a network device in the core network CN, without limitation here.

[0096] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in an open access network (open RAN, O-RAN or ORAN) system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, CU, CU-CP, CU-UP, DU and RU are described as examples in this application. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0097] 3. Side Positioning Reference Signal

[0098] The positioning reference signal (PRS) is a known signal provided by the transmitter to the receiver for positioning. The embodiment of the present application uses a side positioning reference signal to describe the reference signal transmitted between terminal devices, or between a terminal device and a roadside unit (RSU) for realizing the positioning function. The positioning function can be realized by transmitting the side positioning reference signal between terminal devices. The full name of the side positioning reference signal is the sidelink positioning reference signal (SLPRS), and SL PRS can also be described as SL-PRS or SPRS, etc. It should be noted that with the evolution of the standard, the positioning reference signal between terminal devices may adopt other names. For the convenience of description, the embodiment of the present application uses SLPRS to describe the side positioning reference signal, and uses SL PRS resources to describe the side positioning reference signal resources. SL PRS resources are used to transmit SL PRS.

[0099] 4. Resource pool

[0100] The broad definition of a resource pool is a collection of resources. In this application, a resource pool refers to a sidelink (SL) resource pool, and an SL resource pool can be understood as a collection of SL resources.

[0101] For example, see Figure 1 A schematic diagram of the SL resource pool is shown. Figure 1In a carrier bandwidth (carrier bandwidth), part of the bandwidth (bandwidth part, BWP) is allocated to the SL for use, and the BWP allocated to the SL for use can be called SL BWP. The time-frequency resources corresponding to the SL BWP can be further divided into multiple SL resource pools, and each SL resource pool can be configured with independent channels, such as the physical sidelink control channel (physical sidelink control channel, PSCCH) or the physical sidelink shared channel (physical sidelink shared channel, PSSCH) and other channels. Each SL resource pool performs independent perception and resource allocation. The frequency domain resources in the SL resource pool can be further divided into sub-channels with finer granularity. Resource allocation and data transmission are based on sub-channels, such as allocating one or multiple consecutive sub-channels, or performing data transmission on one or multiple consecutive sub-channels. A sub-channel can include multiple physical resource blocks (physical resource blocks, PRBs). A sub-channel can also be used to represent specific frequency domain location information.

[0102] An embodiment of the present application relates to a SL PRS dedicated resource pool, which may be the above-mentioned SL resource pool. However, the resources in the SL resource pool are used to transmit SL PRS and PSCCH, but not to transmit PSSCH.

[0103] For SL resources, the scheduling method can be a dynamic scheduling method, a semi-static scheduling method or a periodic scheduling method. Among them, the dynamic scheduling method is implemented through downlink control information (DCI) indication; the periodic scheduling method is implemented through RRC signaling pre-configuration; the semi-static scheduling method is implemented through RRC signaling pre-configuration combined with DCI indication. Although SL resources support semi-static scheduling, how to implement semi-static scheduling of SL PRS resources in the SL PRS exclusive resource pool is a hot topic of current research. Moreover, there is no clear conclusion on whether the current semi-static scheduling of SL resources is applicable to SL PRS resources.

[0104] In view of this, an embodiment of the present application provides a scheduling method and a communication device for SL PRS resources, and the scheduling method refers to a semi-static scheduling method, specifically refers to a semi-static scheduling method in a SL PRS exclusive resource pool. An embodiment of the present application specifies which field in the DCI indicates activation or deactivation of the semi-statically scheduled SL PRS resources, so that semi-static scheduling of SL PRS resources can be implemented in the SL PRS exclusive resource pool, which is beneficial to saving signaling overhead.

[0105] The network architecture to which the embodiments of the present application are applied is described below.

[0106] See also Figure 2 , is a schematic diagram of a network architecture applying an embodiment of the present application. Figure 2 The network architecture shown may include a network device 201 , a terminal device 202 , and a terminal device 203 . Figure 2 The device form and device quantity shown are for illustrative purposes only and do not constitute a limitation on the embodiments of the present application. Figure 2 Taking the example that both terminal device 202 and terminal device 203 are within the coverage of network device 201, it is also possible that terminal device 202 is within the coverage of network device 201, while terminal device 203 is not within the coverage of network device 201; or, terminal device 203 is within the coverage of network device 201, while terminal device 202 is not within the coverage of network device 201. That is, at least one terminal device is within the coverage of network device 201. Terminal devices within the coverage of network device 201 can receive signaling such as DCI and / RRC signaling.

[0107] Exemplarily, under the control of network device 201, terminal device 202 can send SLPRS to terminal device 203; terminal device 203 receives SL PRS and can achieve ranging or angle measurement by measuring SL PRS to obtain measurement results; terminal device 203 can send the measurement results to network device 201.

[0108] Exemplarily, under the control of network device 201, terminal device 203 can send SLPRS to terminal device 202; terminal device 202 receives SL PRS and can achieve ranging or angle measurement by measuring SL PRS to obtain measurement results; terminal device 202 can send the measurement results to network device 201.

[0109] Optional, Figure 2 The network architecture shown may also include a location management function (LMF) 204. LMF is a network element, module or component in the new radio (NR) core network, mainly used to provide positioning functions. The network device 201 may send the measurement results it receives to LMF 204, and LMF 204 may analyze the measurement results. The network device 201 may directly feed back the measurement results to LMF 204, or feed back the measurement results to LMF 204 through other core network network elements.

[0110] See also Figure 3 , is a schematic diagram of another network architecture applying an embodiment of the present application. Figure 3The network architecture shown may include UE 301 , next generation-radio access network (NG-RAN) 302 , access and mobility management function (AMF) 303 , and LMF 304 . Figure 3 The network architecture shown can be understood as a positioning network architecture based on NG-RAN.

[0111] NG-RAN 302 may include a 4G site (i.e., ng-eNB) and a 5G site (i.e., gNB) of the 5G core network. Among them, ng-eNB is a device or apparatus deployed in a wireless access network that meets the 4G standard and provides wireless communication functions for UE. ng-eNB can be various forms of base stations, access points, etc. ng-eNB can also be a TRP. gNB is a device or apparatus deployed in a wireless access network that meets the 5G standard and provides wireless communication functions for UE. gNB can be various forms of base stations, access points, etc. gNB can also be a TRP or a transmission measurement function (TMF), etc.

[0112] AMF 303 is a network element, module or component in the NR core network, mainly used to provide access management functions.

[0113] AMF 303 receives a location service request for UE 301, which may be sent by other network elements in the NR core network or by the data network. AMF 303 sends the received location service request to LMF 304, which processes the received location service request and initiates a location procedure for UE 301. NG-RAN 302 is responsible for sending SL PRS to UE 301 and / or receiving SL PRS from UE 301, and obtaining measurement results based on SL PRS, and then sending the measurement results to LMF 304 through AMF 303.

[0114] based on Figure 2 or Figure 3 The network architecture shown in the figure, the scheduling method of SL PRS resources provided in the embodiment of the present application is described in detail below. For the convenience of description, the terminal device takes UE as an example.

[0115] See also Figure 4 , is a flowchart of a method for scheduling SL PRS resources provided in an embodiment of the present application, the method may include but is not limited to the following steps:

[0116] 401, the network device sends DCI to the UE. Correspondingly, the UE receives the DCI from the network device. The DCI includes a first field and a second field, the first field is used to determine the SLPRS resource, and the second field is used to indicate activation or deactivation of the SLPRS resource.

[0117] It can be understood that the first field is used to determine the SL PRS resources, that is, the pre-configured SL PRS resources. The pre-configured SL PRS resources refer to the SL PRS resources configured by the network device for the UE through RRC signaling. The second field is used to indicate activation or deactivation of the SL PRS resources.

[0118] The value of the second field is specifically used to indicate that when the SL PRS resource is in an inactivated state, the SLPRS resource is activated; or, to indicate that when the SL PRS resource is in an activated state, the SL PRS resource is deactivated.

[0119] Optionally, the first field may be a resource indication field or a configuration index field. The resource indication field may be an SLPRS resource indication field, for example, it may be the SL PRS resource indicator field in the DCI, which is used to indicate the index of the SL PRS resource. The configuration index field may be, for example, the Configuration index field in the DCI, which is used to indicate the configuration index, that is, the configuration index of the semi-static configuration information, and the semi-static configuration information is configured by RRC signaling. The configuration index may be associated with the SL PRS resource, and the association relationship may be configured in the semi-static configuration information. Among them, semi-static may also be described as semi-periodic, semi-continuous or semi-continuous, etc., indicating that periodic transmission is possible after activation until it stops. The conditions for stopping include: the network device sends a deactivation indication; or, the maximum number of transmissions is reached; or, certain rules are met, such as stopping according to a preset probability.

[0120] Optionally, the second field may be an activation indication field, a time domain scheduling field, or a resource indication field. The activation indication field may be a newly added field in the DCI, which is used to indicate activation or deactivation of the SL PRS resources determined based on the first field. The activation indication field may be, for example, the SL PRS activation field. The time domain scheduling field may be a time domain resource scheduling field, such as the Time resource assignment field in the DCI, which is usually used to indicate the index of the scheduled SL PRS resource, and some values ​​of the field are multiplexed in the embodiment of the present application to indicate activation or deactivation of the SL PRS resources determined based on the first field. The resource indication field may be a SL PRS resource indication field, such as the SL PRS resource indication field in the DCI, which is usually used to indicate the time domain information of the SL PRS resource, and some values ​​of the field are multiplexed in the embodiment of the present application to indicate activation or deactivation of the SL PRS resources determined based on the first field. Among them, the time domain information of the SL PRS resource may be the time slot information of the SL PRS resource, indicating one or more time units, such as one or more time slots. Exemplarily, the SL PRS resource occupies 3 time slots, and the time domain information of the SL PRS resource indicates the indexes of the 3 time slots.

[0121] The two optional fields of the first field and the three optional fields of the second field are used for example and do not constitute a limitation on the embodiments of the present application. Based on the two optional fields of the first field and the three optional fields of the second field, a variety of combinations can be obtained, which will be described in detail in the following methods 1 to 7, and will not be repeated here.

[0122] 402a, in response to the value of the second field, the UE activates the above-mentioned SL PRS resources.

[0123] The UE receives the DCI, parses the first field and the second field from the DCI, and determines the SL PRS resource based on the first field. Optionally, the UE determines that the SL PRS resource is in an activated state or a deactivated state. For example, the first field is the SL PRS resource indication field. Based on the index of the SL PRS resource indicated by the field, the UE determines the SL PRS resource and monitors whether the SL PRS resource is used to transmit SL PRS and / or PSCCH. If it is not used to transmit SL PRS and / or PSCCH, then the SL PRS resource is in an inactivated state; if it is being used to transmit SL PRS and / or PSCCH, then the SL PRS resource is in an activated state.

[0124] The UE may determine to activate the SL PRS resource based on the value of the second field. Optionally, when the UE determines that the SLPRS resource is in an inactivated state, the UE may determine to activate the SL PRS resource based on the value of the second field. After activating the SL PRS resource, the UE may transmit the SL PRS and / or PSCCH through the SL PRS resource.

[0125] 402b, in response to the value of the second field, the UE deactivates the above-mentioned SL PRS resources.

[0126] The UE may determine to deactivate the SL PRS resource based on the value of the second field. Optionally, when the UE determines that the SL PRS resource is in an activated state, the UE may determine to deactivate the SL PRS resource based on the value of the second field. After deactivating the SL PRS resource, the UE may stop transmitting the SL PRS and / or PSCCH through the SL PRS resource.

[0127] exist Figure 4 In the illustrated embodiment, in combination with the first field and the second field in the DCI, the UE can activate or deactivate the semi-static SL PRS resources, thereby implementing semi-static scheduling of the SL PRS resources, which is beneficial to saving signaling overhead.

[0128] Optionally, the network device may send RRC signaling to the UE before sending DCI to the UE.

[0129] In one implementation, the network device sends a first RRC signaling to the UE, and the first RRC signaling may include one or more of a configuration index, a transmission period, and a maximum number of transmissions. The configuration index is used to indicate the index of the semi-static configuration information. The transmission period is used to indicate the transmission period of the SL PRS resource, in milliseconds (ms), for example, the minimum period is 100ms and the maximum period is 1000ms. With the development of the standard, the maximum period may be further expanded. The maximum number of transmissions is used to indicate the maximum number of transmissions of the SL PRS resource associated with the semi-static configuration information.

[0130] Exemplarily, the semi-static configuration information configured by the first RRC signaling may be as follows:

[0131] SL-PRSConfiguredGrantConfig-r18::=SEQUENCE{

[0132] sl-ConfigIndexCG-r16 SL-ConfigIndexCG-r16,

[0133] sl-PeriodCG-r16 SL-PeriodCG-r16

[0134] sl-CG-MaxTransNumList-r16::=SEQUENCE(SIZE(1..maxNrofPRS-Resources)OFPRS-Resource ID

[0135] Among them, sl-ConfigIndexCG represents the configuration index, sl-PeriodCG represents the transmission period, and sl-CG-MaxTransNumList represents the maximum number of transmissions.

[0136] In another implementation, the network device sends a second RRC signaling to the UE, and the second RRC signaling may include one or more of a configuration index, a transmission period, a maximum number of transmissions, and a SL PRS resource associated with the configuration index. Among them, the configuration index is used to indicate the index of the semi-static configuration information. The transmission period is used to indicate the transmission period of the SL PRS resource, in milliseconds (ms), for example, the minimum period is 100ms and the maximum period is 1000ms. With the development of the standard, the maximum period may be further expanded. The maximum number of transmissions is used to indicate the maximum number of transmissions of the SL PRS resource associated with the semi-static configuration information. The SL PRS resources associated with the configuration index can also be described as SL PRS resources associated with the semi-static configuration information.

[0137] Exemplarily, the semi-static configuration information configured by the second RRC signaling may be as follows:

[0138] SL-PRSConfiguredGrantConfig-r18::=SEQUENCE{

[0139] sl-ConfigIndexCG-r16 SL-ConfigIndexCG-r16,

[0140] sl-PeriodCG-r16 SL-PeriodCG-r16

[0141] sl-PRS-ResourceIDList-r18 SL-PRS-ResourceIDList-r18

[0142] sl-CG-MaxTransNumList-r16::=SEQUENCE(SIZE(1..maxNrofPRS-Resources)OFPRS-Resource ID

[0143] Among them, sl-ConfigIndexCG represents the configuration index, sl-PeriodCG represents the transmission period, sl-CG-MaxTransNumList represents the maximum number of transmissions, sl-PRS-ResourceIDList represents the SLPRS resource list associated with the configuration index, and the SL PRS resource list may include one or more SL PRS resources.

[0144] By comparing the first RRC signaling and the second RRC signaling, it can be seen that the second RRC signaling configures more sl-PRS-ResourceIDList than the second RRC signaling, that is, the SL PRS resources associated with the multiple configuration indexes. When the network device sends the first RRC signaling, the DCI sent by the network device to the UE needs to include a resource indication field; and when the network device sends the second RRC signaling, the DCI sent by the network device to the UE may include a resource indication field or may not include a resource indication field. When the DCI does not include a resource indication field, it is beneficial to shorten the bit length of the DCI.

[0145] Exemplarily, the DCI may include one or more of the following fields:

[0146] - Resource pool index, the field length of this field is log2I rounded up to the whole bit, I is the total number of resource pools configured by high-level parameters, or the total number of resource pools configured by high-level parameters for transmitting SL PRS, or the total number of SL PSR dedicated resource pools configured by high-level parameters; this field is used to indicate the resource pool to which the currently scheduled SLPRS resources belong;

[0147] -Time Gap: This field has a length of 3 bits and is used to indicate the time slot offset between the transmission time of the SL PRS resource and the time slot for receiving the DCI.

[0148] -SCI format1-B fields according to clause 8.3.1.2:

[0149] -Time resource assignment: This field is used to indicate the time slot information of the currently scheduled SL PRS resource;

[0150] - SL PRS resource indication: This field is used to indicate the index of the currently scheduled SL PRS resource;

[0151] -Configuration index: This field is used to indicate the configuration index in the RRC signaling; for example, the configuration index in the first RRC signaling or the configuration index in the second RRC signaling;

[0152] -Activation indication (SL PRS activation): This field is used to indicate activation or deactivation of SL PRS resources.

[0153] Based on the two optional fields of the first field and the three optional fields of the second field, multiple combinations are available:

[0154] Mode 1: the first field is a resource indication field, and the second field is an activation indication field.

[0155] The resource indication field indicates the currently scheduled SL PRS resource, and the activation indication field indicates activation or deactivation of the SLPRS resource. The resource indication field indicates one or more SL PRS resources, specifically, the index of one or more SL PRS resources. The resource indication field may also be referred to as the SL PRS resource identifier (SL PRS resource ID) field or other names, which are not limited here.

[0156] Optionally, the field length of the activation indication field is 1 bit, and the value of this 1 bit is used to indicate activation or deactivation of the SL PRS resource. When the value of this 1 bit is the first value, the SL PRS resource is in an unactivated state, and the activation indication field is used to indicate activation of the SL PRS resource; when the value of this 1 bit is the second value, the SL PRS resource is in an activated state, and the activation indication field is used to indicate deactivation of the SL PRS resource. The first value and the second value may be the same, for example, when the value of this 1 bit is 1, the SL PRS resource is in an unactivated state, and the SL PRS resource is activated; when the value of this 1 bit is 1, the SL PRS resource is in an activated state, and the SL PRS resource is deactivated. The first value and the second value may be different, for example, when the value of this 1 bit is 1, the SL PRS resource is in an unactivated state, and the SL PRS resource is activated; when the value of this 1 bit is 0, the SL PRS resource is in an activated state, and the SL PRS resource is deactivated.

[0157] Optionally, the field length of the activation indication field is 2 bits, and the value of these 2 bits is used to indicate the activation or deactivation of the SL PRS resource. When the value of these 2 bits is the third value, it is used to indicate the activation of the SL PRS resource; when the value of these 2 bits is the fourth value, it is used to indicate the deactivation of the SL PRS resource. Optionally, when the value of these 2 bits is the third value, the SL PRS resource is in an unactivated state, then the activation indication field is used to indicate the activation of the SL PRS resource; when the value of these 2 bits is the fourth value, the SL PRS resource is in an activated state, then the activation indication field is used to indicate the deactivation of the SL PRS resource. The third value and the fourth value may be different. For example, when the value of these 2 bits is 01, it indicates the activation of the SL PRS resource; when the value of these 2 bits is 10, it indicates the deactivation of the SL PRS resource. Other values ​​of these 2 bits can be used to indicate other functions, thereby saving the signaling overhead of DCI.

[0158] The DCI may also include a configuration index field, based on which the transmission period and / or maximum transmission times of the SL PRS resources may be determined so that the UE may periodically activate or deactivate the SL PRS resources and / or activate or deactivate the SL PRS resources according to the maximum transmission times.

[0159] Mode 2: the first field is a configuration index field, and the second field is an activation indication field.

[0160] The configuration index field indicates the configuration index in the RRC signaling. The configuration index is associated with the SL PRS resource. One configuration index can be associated with one SL PRS resource. The activation indication field indicates activation or deactivation of the associated SL PRS resource.

[0161] Optionally, the field length of the activation indication field is 1 bit, and the value of this 1 bit is used to indicate activation or deactivation of the SL PRS resource. When the value of this 1 bit is the first value, the SL PRS resource is in an unactivated state, and the activation indication field is used to indicate activation of the SL PRS resource; when the value of this 1 bit is the second value, the SL PRS resource is in an activated state, and the activation indication field is used to indicate deactivation of the SL PRS resource. The first value and the second value may be the same, for example, when the value of this 1 bit is 1, the SL PRS resource is in an unactivated state, and the SL PRS resource is activated; when the value of this 1 bit is 1, the SL PRS resource is in an activated state, and the SL PRS resource is deactivated. The first value and the second value may be different, for example, when the value of this 1 bit is 1, the SL PRS resource is in an unactivated state, and the SL PRS resource is activated; when the value of this 1 bit is 0, the SL PRS resource is in an activated state, and the SL PRS resource is deactivated.

[0162] Optionally, the field length of the activation indication field is 2 bits, and the value of these 2 bits is used to indicate the activation or deactivation of the SL PRS resource. When the value of these 2 bits is the third value, it is used to indicate the activation of the SL PRS resource; when the value of these 2 bits is the fourth value, it is used to indicate the deactivation of the SL PRS resource. Optionally, when the value of these 2 bits is the third value, the SL PRS resource is in an unactivated state, then the activation indication field is used to indicate the activation of the SL PRS resource; when the value of these 2 bits is the fourth value, the SL PRS resource is in an activated state, then the activation indication field is used to indicate the deactivation of the SL PRS resource. The third value and the fourth value may be different. For example, when the value of these 2 bits is 01, it indicates the activation of the SL PRS resource; when the value of these 2 bits is 10, it indicates the deactivation of the SL PRS resource. Other values ​​of these 2 bits can be used to indicate other functions, thereby saving the signaling overhead of DCI.

[0163] The configuration index field is also used to indicate the transmission period and / or maximum transmission number of the SL PRS resources, so that the UE can determine the transmission period and / or maximum transmission number of the SL PRS resources so that the UE can periodically activate or deactivate the SL PRS resources and / or activate or deactivate the SL PRS resources according to the maximum transmission number.

[0164] Compared with method 1, method 2 can shorten the bit length of DCI.

[0165] Mode 3: the first field is a resource indication field, and the second field is a time domain scheduling field.

[0166] The resource indication field indicates the currently scheduled SL PRS resource, and the time domain scheduling field indicates activation or deactivation of the SLPRS resource. The resource indication field may be, for example, the SL PRS resource indication field or the First SL PRSindicator field. The time domain scheduling field may be, for example, the Time resource assignment field or the ResourceID indication field. Optionally, the resource indication field is the SL PRS resource indication field, and the time domain scheduling field is the Time resource assignment field. Optionally, the resource indication field is the First SL PRSindicator field, and the time domain scheduling field is the Resource ID indication field. Among them, the First SL PRSindicator field and the Resource ID indication field can be explained in detail in Method 6.

[0167] In traditional communications, data retransmission can improve the transmission success rate. Different resource cycles send different data blocks instead of retransmitting a certain data block. For example, see Figure 5 As shown, Figure 5 In the example, data block 1 is transmitted in a semi-static resource period, and data block 1 is retransmitted in the period; and data block 2 is transmitted in the next semi-static resource period. However, for SL PRS, it is sufficient to transmit SL PRS once in each SL PRS resource period, because SL PRS does not need to be retransmitted, and joint estimation can be performed through the transmission of multiple SL PRS resource periods to improve measurement accuracy. Therefore, for transmitting SL PRS once in each SL PRS resource period, there is no need for a time domain scheduling field to indicate the non-periodic SL PRS resources reserved in the future. For example, see Figure 6 As shown, Figure 6 In the case of a semi-static resource cycle, the SLPRS is transmitted once. Furthermore, the time domain scheduling field can be multiplexed to indicate activation or deactivation of the SL PRS resource.

[0168] When the value of the time domain scheduling field is the fifth value, it indicates that the SL PRS resource is activated; when the value of the time domain scheduling field is the sixth value, it indicates that the SL PRS resource is deactivated. Optionally, when the value of the time domain scheduling field is the fifth value, the SL PRS resource is in an unactivated state, then the time domain scheduling field is used to indicate the activation of the SL PRS resource; when the value of the time domain scheduling field is the sixth value, the SL PRS resource is in an activated state, then the time domain scheduling field is used to indicate the deactivation of the SL PRS resource. For example, the value of the time domain scheduling field is all 1s, indicating that the SL PRS resource is activated; the value of the time domain scheduling field is all 0s, indicating that the SL PRS resource is deactivated.

[0169] The field length of the time domain scheduling field can be calculated based on the parameters of the system configuration, for example, the field length of the time domain scheduling field is determined according to the number of SL PRS resources, and for example, the field length of the time domain scheduling field is determined according to the maximum number of resource reservations. Exemplarily, the field length of the time domain scheduling field is 5 bits, and when these 5 bits are 11111, it indicates that the SL PRS resource is activated; when these 5 bits are 00000, it indicates that the SL PRS resource is deactivated.

[0170] Optionally, the fifth and sixth values ​​are predefined, for example, predefined by a protocol. That is, when the value of the fixed time domain scheduling field is the fifth value, it indicates activation of the SL PRS resource; when the value of the fixed time domain scheduling field is the sixth value, it indicates deactivation of the SL PRS resource.

[0171] Optionally, the fifth value and / or the sixth value may be indicated by a network device. For example, the network device sends an RRC signaling to the UE, and the RRC signaling is used to configure the first parameter and / or the second parameter, the first parameter is used to indicate the fifth value, and the second parameter is used to indicate the sixth value. That is, when the first parameter is used to indicate that the value of the time domain scheduling field is the fifth value, the time domain scheduling field is used to indicate the activation of SL PRS resources; when the second parameter is used to indicate that the value of the time domain scheduling field is the sixth value, the time domain scheduling field is used to indicate the deactivation of SL PRS resources.

[0172] For example, the content of the RRC signaling configuration can be found in Figure 7 shown. Figure 7 In SL-ScheduledConfig-r16, two parameters sl-TRIV-Activation-r18 and sl-TRIV-DeActivation-r18 are configured, corresponding to the first parameter and the second parameter mentioned above respectively.

[0173] The DCI may also include a configuration index field, based on which the transmission period and / or maximum transmission times of the SL PRS resources may be determined so that the UE may periodically activate or deactivate the SL PRS resources and / or activate or deactivate the SL PRS resources according to the maximum transmission times.

[0174] Mode 4: the first field is a configuration index field, and the second field is a time domain scheduling field.

[0175] The configuration index field indicates the configuration index in the RRC signaling, and the configuration index is associated with the SL PRS resource; the time domain scheduling field indicates activation or deactivation of the associated SL PRS resource. Mode 4 also reuses the time domain scheduling field to indicate activation or deactivation of the SL PRS resource. Please refer to the specific description of the time domain scheduling field in Mode 3, which will not be repeated here.

[0176] The configuration index field is also used to indicate the transmission period and / or maximum transmission number of the SL PRS resources, so that the UE can determine the transmission period and / or maximum transmission number of the SL PRS resources so that the UE can periodically activate or deactivate the SL PRS resources and / or activate or deactivate the SL PRS resources according to the maximum transmission number.

[0177] Mode 5: the first field is a resource indication field, and the second field is a resource indication field.

[0178] In method 5, the resource indication field can be used to indicate the index of the currently scheduled SL PRS resource and also to indicate the activation or deactivation of the SL PRS resource. That is to say, the resource indication field has two functions, one function indicates the index of the SL PRS, and the other function indicates the activation or deactivation of the SL PRS resource. Optionally, the resource indication field can be a SL PRSresource indication field or a Resource ID indication field, etc. Among them, the Resource ID indication field can refer to method 6 for its specific explanation.

[0179] Considering that SL PRS does not need to be retransmitted, joint estimation can be performed through the transmission of multiple SL PRS resource periods to improve the measurement accuracy. For example, see Figure 6 As shown, Figure 6 In the semi-static resource period, SL PRS is transmitted once. Therefore, the activation or deactivation of SL PRS resources can be indicated by the values ​​of other SL PRS resource indexes except the first SL PRS resource index in the resource indication field. Since one DCI needs to activate multiple transmissions of semi-static SL PRS resources, in order to reduce the indication overhead of DCI, the SL PRS resource indexes in different semi-static resource periods can be designed to be the same, that is, the semi-static SL PRS resources are used for the periodic transmission of the same SL PRS. The transmission period can be the period of the physical time slot or the period of the logical time slot, that is, in the time slot occupied by the SL system, the SL PRS resources are sent at fixed time intervals. Since SL PRS is not retransmitted in a semi-static resource period, the resource indication field can be reused to indicate the activation or deactivation of SL PRS resources.

[0180] Optionally, the value of the resource indication field is a first group of values, indicating activation of SL PRS resources; the value of the resource indication field is a second group of values ​​indicating deactivation of SL PRS resources. Optionally, the value of the resource indication field is a first group of values ​​and the SLPRS resources are in an unactivated state, and the resource indication field is used to indicate activation of SL PRS resources; the value of the resource indication field is a second group of values ​​and the SL PRS resources are in an activated state, and the resource indication field is used to indicate deactivation of SL PRS resources; wherein the first group of values ​​includes one or more values, and the second group of values ​​includes one or more values. A group value represents one or more values, and a value represents an index of an SL PRS resource in a time unit, such as a time slot. For example, the first group of values ​​and the second group of values ​​both include 3 values, the first value of the 3 values ​​represents the index of the SL PRS resource in the first time slot, the second value represents the index of the SL PRS resource in the second time slot, and the third value represents the index of the SL PRS resource in the third time slot.

[0181] Optionally, the value of the resource indication field is the seventh value, indicating activation of SL PRS resources; the value of the resource indication field is the eighth value, indicating deactivation of SL PRS resources. Optionally, the value of the resource indication field is the seventh value and the SL PRS resources are in an unactivated state, and the resource indication field is used to indicate activation of SL PRS resources; the value of the resource indication field is the eighth value and the SL PRS resources are in an activated state, and the resource indication field is used to indicate deactivation of SL PRS resources; wherein the seventh value is different from the eighth value. The seventh value can be understood as the overall value of the first group of values, and the eighth value can be understood as the overall value of the second group of values. Both the first group of values ​​and the second group of values ​​include 3 values, each value is a 2-bit value, then the seventh value can be one value of these 6 bits, and the eighth value can be another value of these 6 bits.

[0182] It can be understood that when the value of the resource indication field is the seventh value or the first group of values, it indicates both the index of the currently scheduled SL PRS resources and the activation of the SL PRS resources; when the value of the resource indication field is the eighth value or the second group of values, it indicates both the index of the currently scheduled SL PRS resources and the deactivation of the SL PRS resources.

[0183] Optionally, the first SL PRS resource index indicated by the resource indication field is used to indicate the first SL PRS resource, and the UE defaults that the index of subsequent SL PRS resources is the same as the index of the first SL PRS resource; and the i-th SL PRS resource index indicated by the resource indication field is used to indicate the activation or deactivation of the SL PRS resource. i is an integer greater than 1, and the i-th SL PRS resource index represents the index of the SL PRS resource in the i-th time unit. The i-th time unit is, for example, the i-th time slot. The i-th time slot is the other time slots in the scheduled time slots except the first time slot. For example, if 3 time slots are scheduled, the i-th time slot can be the second time slot or the third time slot. In other words, the i-th SL PRS resource index is not used to indicate the i-th SL PRS resource, but to indicate the activation or deactivation of the SL PRS resource. Optionally, when the i-th SL PRS resource index indicated by the resource indication field is the ninth value or the third group value, the SL PRS resource is in an unactivated state, indicating that the SL PRS resource is activated; when the i-th SL PRS resource index indicated by the resource indication field is the tenth value or the fourth group value, the SL PRS resource is in an activated state, indicating that the SL PRS resource is deactivated. The ninth value can be understood as a value in the first group of values ​​(not the value of the SLPRS resource index in the first time slot), and the tenth value can be understood as a value in the second group of values ​​(not the value of the SL PRS resource index in the first time slot). The third group of values ​​includes one or more values, and the fourth group of values ​​includes one or more values. In other words, the value of the i-th SL PRS resource index is any value in the third group of values, which can indicate the activation of the SL PRS resource; the value of the i-th SL PRS resource index is any value in the fourth group of values, which can indicate the deactivation of the SL PRS resource.

[0184] Exemplarily, when the SL PRS resource index in the second time slot indicated by the resource indication field is all 1s, it indicates that the SL PRS resource is activated; when the SL PRS resource index in the second time slot is all 0s, it indicates that the SL PRS resource is deactivated. Alternatively, when the SL PRS resource index in the third time slot indicated by the resource indication field is all 1s, it indicates that the SL PRS resource is activated; when the SL PRS resource index in the third time slot is all 0s, it indicates that the SL PRS resource is deactivated.

[0185] Optionally, the seventh value and the eighth value are predefined. Alternatively, the first group of values ​​and the second group of values ​​are predefined. Alternatively, the ninth value and the tenth value are predetermined. Alternatively, the third group of values ​​and the fourth group of values ​​are predefined. Optionally, the ninth value and / or the tenth value may be indicated by a network device. Alternatively, the third group of values ​​and / or the fourth group of values ​​may be indicated by a network device. For example, the network device sends an RRC signaling to the UE, and the RRC signaling is used to configure the third parameter and / or the fourth parameter, the third parameter is used to indicate the ninth value, and the fourth parameter is used to indicate the tenth value; alternatively, the third parameter is used to indicate the third group of values, and the fourth parameter is used to indicate the fourth group of values.

[0186] For example, the content of the RRC signaling configuration can be found in Figure 7 shown. Figure 7 In SL-ScheduledConfig-r16, two parameters sl-TRIV-Activation-r18 and sl-TRIV-DeActivation-r18 are configured, corresponding to the third parameter and the fourth parameter respectively.

[0187] The DCI may also include a configuration index field, based on which the transmission period and / or maximum transmission times of the SL PRS resources may be determined so that the UE may periodically activate or deactivate the SL PRS resources and / or activate or deactivate the SL PRS resources according to the maximum transmission times.

[0188] Mode 6: the first field is a first resource indication field, and the second field is a second resource indication field.

[0189] In mode 6, the first resource indication field indicates the SL PRS resource to be activated or deactivated, and the second resource indication field is used to indicate the activation or deactivation of the SL PRS resource. The first resource indication field indicates the SL PRS resource in the first time slot, and the index of the SL PRS resource in the future time slot is the same as the index of the SL PRS resource in the first time slot by default. Optionally, the first resource indication field can be the First SL PRS indicator field in the DCI, and the second resource indication field can be the Resource ID indication field in the DCI.

[0190] Considering that the SL PRS does not need to be retransmitted, there is no need to indicate the reserved non-periodic SLPRS resources through the second resource indication field, and the second resource indication field can be reused to activate or deactivate the SLPRS resources corresponding to the first resource indication field.

[0191] The DCI of mode 6 may be DCI format 3_2, and the DCI may include one or more of the following fields:

[0192] - Resource pool index, the field length of this field is log2I rounded up to the whole bit, I is the total number of resource pools configured by high-level parameters, or the total number of resource pools configured by high-level parameters for transmitting SL PRS, or the total number of SL PSR dedicated resource pools configured by high-level parameters; this field is used to indicate the resource pool to which the currently scheduled SLPRS resources belong;

[0193] -Time Gap: This field has a length of 3 bits and is used to indicate the time slot offset between the transmission time of the SL PRS resource and the time slot for receiving the DCI.

[0194] -First SL PRS indicator: This field is used to indicate the first SL PRS resource, i.e., the SL PRS in the first time slot. The index of the SL PRS resource in the future time slot is the same as the index of the SLPRS resource in the first time slot by default.

[0195] -SCI format1-B fields according to clause 8.3.1.2:

[0196] -Time resource assignment: This field is used to indicate the time slot information of the currently scheduled SL PRS resource;

[0197] - Resource ID indication: This field is used to indicate the reserved non-periodic SL PRS resources. In mode 7, it is used to indicate activation or deactivation of SL PRS resources.

[0198] -Configuration index: This field is used to indicate the configuration index in the RRC signaling; for example, the configuration index in the first RRC signaling or the configuration index in the second RRC signaling; if the configuration index in the second RRC signaling is indicated, the SL PRS resource indicated by the first SL PRS indication field is included in at least one SL PRS resource associated with the configuration index.

[0199] Optionally, when the value of the second resource indication field is the eleventh value, it indicates activation of the SL PRS resources; when the value of the second resource indication field is the twelfth value, it indicates deactivation of the SL PRS resources.

[0200] The eleventh value and the twelfth value may be predefined. Alternatively, the eleventh value and / or the twelfth value may be indicated by the network device. The network device indicating the eleventh value and / or the twelfth value may refer to the network device indicating the fifth value and / or the sixth value.

[0201] Mode 7: the first field is a configuration index field, and the second field is a resource indication field.

[0202] The configuration index field indicates the configuration index in the RRC signaling, and the configuration index is associated with the SL PRS resource; the resource indication field indicates activation or deactivation of the associated SL PRS resource. The RRC signaling may be the second RRC signaling described above.

[0203] In the case of configuring the index-associated SL PRS field, the resource indication field may not need to indicate the SL PRS resource, and this field is used to indicate the activation or deactivation of the associated SL PRS resource. The resource indication field indicates the activation or deactivation of the SLPRS, and the specific description thereof can be referred to in method 5, which will not be repeated here. Optionally, the resource indication field may also be the second resource indication field in method 6.

[0204] The configuration index field is also used to indicate the transmission period and / or maximum transmission number of the SL PRS resources, so that the UE can determine the transmission period and / or maximum transmission number of the SL PRS resources so that the UE can periodically activate or deactivate the SL PRS resources and / or activate or deactivate the SL PRS resources according to the maximum transmission number.

[0205] The above-mentioned methods 1 to 7 are used for examples. The embodiments of the present application do not exclude the possibility of multiplexing other fields in the DCI to indicate the activation or deactivation of SL PRS resources.

[0206] The present application provides a communication device that can be used to implement the functions of the above-mentioned UE or network device. The communication device can be a UE or a network device. The communication device includes a unit corresponding to the method / operation / step / action performed by the UE or network device in the above-mentioned method embodiment. The unit can be a hardware circuit, or software, or a combination of a hardware circuit and software. Figure 8 , Figure 8 A schematic diagram of the structure of a communication device 800 according to an embodiment of the present application is shown. The communication device 800 may include an interface unit 801 and a processing unit 802. Specifically, the processing unit 802 is used to process signaling and / or data, the signaling and / or data may be data received by the interface unit 801, and the processed signaling and / or data may also be sent by the interface unit 801;

[0207] In one implementation, when the communication device 800 is a UE, wherein:

[0208] The interface unit 801 is configured to receive downlink control information from a network device, where the downlink control information includes a first field and a second field; wherein the first field is used to determine a sideline positioning reference signal resource, and the second field is used to indicate activation or deactivation of the sideline positioning reference signal resource;

[0209] The processing unit 802 is configured to activate the sideline positioning reference signal resource in response to the value of the second field; and deactivate the sideline positioning reference signal resource in response to the value of the second field.

[0210] In this embodiment, for the specific implementation of the above interface unit 801 and the processing unit 802, please refer to Figure 4 The specific implementation steps of the UE are not repeated here.

[0211] In another embodiment, the Figure 8 When the communication device shown is a network device, wherein:

[0212] The interface unit 801 is used to send downlink control information to the terminal device, and the downlink control information includes a first field and a second field; wherein the first field is used to determine the sideline positioning reference signal resource; and the second field is used to indicate activation or deactivation of the positioning reference signal resource.

[0213] In this embodiment, for the specific implementation of the above interface unit 801 and the processing unit 802, please refer to Figure 4 The specific implementation steps of the network equipment will not be repeated here.

[0214] like Fig. 9 A communication device 900 provided in an embodiment of the present application is shown, which is used to implement the functions of the above-mentioned UE or network device. The device can be a communication device or a device used in a communication device, and the communication device can be a UE or a network device. The device used in the communication device can be a chip system or a chip in the communication device. Among them, the chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0215] The communication device 900 includes at least one processor 910, which is used to implement the processing function of the device (such as UE or network equipment) in the method provided in the embodiment of the present application. The communication device 900 may also include a communication interface 920, which is used to implement the transceiver operation of the device (such as UE or network equipment) in the method provided in the embodiment of the present application. In the embodiment of the present application, the communication interface can be a transceiver, a circuit, a bus, a module or other type of communication interface, which is used to communicate with other devices through a transmission medium. For example, the communication interface 920 is used for the device in the communication device 900 to communicate with other devices. The processor 910 uses the communication interface 920 to send and receive data, and is used to implement the method described in the above method embodiment.

[0216] The communication device 900 may also include at least one memory 930 for storing program instructions and / or data. The memory 930 is coupled to the processor 910. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 910 may operate in conjunction with the memory 930. The processor 910 may execute program instructions stored in the memory 930. At least one of the at least one memory may be included in the processor.

[0217] The specific connection medium between the communication interface 920, the processor 910 and the memory 930 is not limited in the embodiment of the present application. Fig. 9 The memory 930, the processor 910 and the communication interface 920 are connected via a bus. Fig. 9 The connections between the other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig. 9 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0218] When the communication device 900 is specifically a device for a device (such as a UE or a network device), for example, when the communication device 900 is specifically a chip or a chip system, the communication interface 920 may output or receive a baseband signal. When the communication device 900 is specifically a device (such as a UE or a network device), the communication interface 920 may output or receive a radio frequency signal. In an embodiment of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0219] It should be noted that the above-mentioned communication interface 920 can be used to execute the function of the above-mentioned interface unit 801, and the above-mentioned processor 910 can be used to execute the function of the above-mentioned processing unit 802, which will not be repeated here.

[0220] When the above-mentioned communication device is a chip applied to UE, the chip implements the function of UE in the above-mentioned method embodiment, and the chip receives information from other devices; or the chip sends information to other devices.

[0221] When the communication device is a chip applied to a network device, the chip implements the function of the network device in the above method embodiment. The chip receives information from other devices; or the chip sends information to other devices.

[0222] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0223] The method steps in the embodiments of the present application can be implemented by hardware or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, mobile hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in an access network device or a terminal. Of course, the processor and the storage medium can also be present in a terminal or an access network device as discrete components.

[0224] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program or instruction may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a tape; it may also be an optical medium, such as a DVD; it may also be a semiconductor medium, such as a solid state drive (SSD).

[0225] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0226] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

[0227] An embodiment of the present application further provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed, the method executed by the UE or network device in the above method embodiment is implemented.

[0228] An embodiment of the present application further provides a computer program product, which includes a computer program. When the computer program is executed, the method performed by the UE or the network device in the above method embodiment is implemented.

[0229] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0230] The descriptions of the various embodiments provided in this application can refer to each other, and the descriptions of the various embodiments have different focuses. For parts that are not described in detail in a certain embodiment, refer to the relevant descriptions of other embodiments. For the convenience and simplicity of description, for example, the functions of the various devices and equipment provided in the embodiments of this application and the steps of execution can refer to the relevant descriptions of the method embodiments of this application, and the various method embodiments and the various device embodiments can also refer to, combine or quote each other.

[0231] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for scheduling side-by-side positioning reference signal resources, characterized in that: The method comprises: Receive downlink control information from a network device, the downlink control information comprising a first field and a second field; wherein the first field is used to determine a sideline positioning reference signal resource; and the second field is used to indicate activation or deactivation of the sideline positioning reference signal resource; In response to a value of the second field, activating the sideline positioning reference signal resource; In response to the value of the second field, the sidelink positioning reference signal resource is deactivated.

2. The method according to claim 1, characterized in that The second field is an activation indication field, and the field length of the activation indication field is 1 bit; The value of the activation indication field is a first value and the sideline positioning reference signal resource is in an inactivated state, and the activation indication field is used to indicate activation of the sideline positioning reference signal resource; The value of the activation indication field is a second value and the sideline positioning reference signal resource is in an activated state, and the activation indication field is used to indicate deactivation of the sideline positioning reference signal resource; The first value is the same as or different from the second value.

3. The method according to claim 1, characterized in that The second field is an activation indication field, and the field length of the activation indication field is 2 bits; The value of the activation indication field is a third value, and the activation indication field is used to indicate activation of the sidelink positioning reference signal resource; The value of the activation indication field is a fourth value, and the activation indication field is used to indicate deactivation of the sideline positioning reference signal resource; The third value is different from the fourth value.

4. The method according to claim 1, characterized in that The second field is a time domain scheduling field; The value of the time domain scheduling field is a fifth value, and the time domain scheduling field is used to indicate activation of the sideline positioning reference signal resource; The value of the time domain scheduling field is a sixth value, and the time domain scheduling field is used to indicate deactivation of the sideline positioning reference signal resource; The fifth value is different from the sixth value.

5. The method according to claim 4, characterized in that The method further comprises: A first parameter and / or a second parameter is received from the network device, wherein the first parameter is used to indicate the fifth value, and the second parameter is used to indicate the sixth value.

6. The method according to claim 1, characterized in that The second field is a resource indication field; The value of the resource indication field is the seventh value or the first group of values, and the resource indication field is used to indicate activation of the sideline positioning reference signal resource; The value of the resource indication field is the eighth value or the second group of values, and the resource indication field is used to indicate deactivation of the sidelink positioning reference signal resource; The seventh value is different from the eighth value, the first set of values ​​includes one or more values, and the second set of values ​​includes one or more values.

7. The method according to claim 6, characterized in that The i-th sideline positioning reference signal resource index indicated by the resource indication field is a ninth value or a third group of values, and the resource indication field is specifically used to indicate activation of the sideline positioning reference signal resource; The i-th sidelink positioning reference signal resource index indicated by the resource indication field is the tenth value or the fourth group value, and the resource indication field is specifically used to indicate deactivation of the sidelink positioning reference signal resource; Wherein, i is an integer greater than 1, the third set of values ​​includes one or more values, and the fourth set of values ​​includes one or more values.

8. The method according to claim 7, characterized in that The method further comprises: A third parameter and / or a fourth parameter is received from the network device, the third parameter being used to indicate the ninth value or the third group of values, and the fourth parameter being used to indicate the tenth value or the fourth group of values.

9. The method according to any one of claims 1 to 8, characterized in that The first field is a resource indication field, and the resource indication field is used to indicate the index of the sidelink positioning reference signal resource.

10. The method according to claim 9, characterized in that The downlink control information further includes a configuration index field, and the configuration index field is used to determine the transmission period and / or maximum transmission times of the sidelink positioning reference signal resource.

11. The method according to claim 9, characterized in that The method further comprises: A first radio resource control signaling is received from the network device, where the first radio resource control signaling is used to configure the transmission period and / or the maximum number of transmissions.

12. The method according to any one of claims 1 to 8, characterized in that: The first field is a configuration index field, and the configuration index field is used to indicate a configuration index, and the configuration index is associated with the sidelink positioning reference signal resource.

13. The method according to claim 12, characterized in that The configuration index field is also used to determine the transmission period and / or maximum transmission times of the sidelink positioning reference signal resource.

14. The method according to claim 12, characterized in that The method further comprises: Receive a second wireless resource control signaling from the network device, where the second wireless resource control signaling is used to configure the transmission period, the maximum number of transmissions, the configuration index, and at least one of the sideline positioning reference signal resources associated with the configuration index.

15. A method for scheduling positioning reference signal resources, characterized in that: The method comprises: Downlink control information is sent to a terminal device, wherein the downlink control information includes a first field and a second field; wherein the first field is used to determine a sideline positioning reference signal resource; and the second field is used to indicate activation or deactivation of the positioning reference signal resource.

16. The method according to claim 15, characterized in that The second field is an activation indication field, and the field length of the activation indication field is 1 bit; The value of the activation indication field is a first value and the sideline positioning reference signal resource is in an inactivated state, and the activation indication field is used to indicate activation of the sideline positioning reference signal resource; The value of the activation indication field is a second value and the sideline positioning reference signal resource is in an activated state, and the activation indication field is used to indicate deactivation of the sideline positioning reference signal resource; The first value is the same as or different from the second value.

17. The method according to claim 15, characterized in that The second field is an activation indication field, and the field length of the activation indication field is 2 bits; The value of the activation indication field is a third value, and the activation indication field is used to indicate activation of the sidelink positioning reference signal resource; The value of the activation indication field is a fourth value, and the activation indication field is used to indicate deactivation of the sideline positioning reference signal resource; The third value is different from the fourth value.

18. The method according to claim 15, characterized in that The second field is a time domain scheduling field; The value of the time domain scheduling field is a fifth value, and the time domain scheduling field is used to indicate activation of the sideline positioning reference signal resource; The value of the time domain scheduling field is a sixth value, and the time domain scheduling field is used to indicate deactivation of the sideline positioning reference signal resource; The fifth value is different from the sixth value.

19. The method according to claim 18, characterized in that The method further comprises: A first parameter and / or a second parameter is sent to the terminal device, where the first parameter is used to indicate the fifth value, and the second parameter is used to indicate the sixth value.

20. The method of claim 15, wherein: The second field is a resource indication field; The value of the resource indication field is the seventh value or the first group of values, and the resource indication field is used to indicate activation of the sideline positioning reference signal resource; The value of the resource indication field is the eighth value or the second group of values, and the resource indication field is used to indicate deactivation of the sidelink positioning reference signal resource; The seventh value is different from the eighth value, the first set of values ​​includes one or more values, and the second set of values ​​includes one or more values.

21. The method of claim 20, wherein: The i-th sideline positioning reference signal resource index indicated by the resource indication field is a ninth value or a third group of values, and the resource indication field is specifically used to indicate activation of the sideline positioning reference signal resource; The i-th sidelink positioning reference signal resource index indicated by the resource indication field is the tenth value or the fourth group value, and the resource indication field is specifically used to indicate deactivation of the sidelink positioning reference signal resource; Wherein, i is an integer greater than 1, the third set of values ​​includes one or more values, and the fourth set of values ​​includes one or more values.

22. The method according to claim 21, characterized in that The method further comprises: A third parameter and / or a fourth parameter is sent to the terminal device, wherein the third parameter is used to indicate the ninth value or the third group of values, and the fourth parameter is used to indicate the tenth value or the fourth group of values.

23. The method according to any one of claims 15 to 22, characterized in that: The first field is a resource indication field, and the resource indication field is used to indicate the index of the sidelink positioning reference signal resource.

24. The method according to any one of claims 15 to 22, characterized in that: The first field is a configuration index field, and the configuration index field is used to indicate a configuration index, and the configuration index is associated with the sidelink positioning reference signal resource.

25. A communication device, characterized in that: Comprising a module for executing the method as claimed in any one of claims 1 to 14, or a module for executing the method as claimed in any one of claims 15 to 24.

26. A communication device, characterized in that: The method comprises a processor, wherein the processor is configured to implement the method according to any one of claims 1 to 14 or the method according to any one of claims 15 to 24 through a logic circuit and / or by executing a computer program or instruction.

27. The communication device according to claim 26, characterized in that Also includes: The memory is used to store the computer program or instructions.

28. A communication device, characterized in that: It includes a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method as described in any one of claims 1 to 14 through a logic circuit or execute code instructions; or the method as described in any one of claims 15 to 24.

29. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or an instruction. When the computer program or the instruction is executed by the communication device, the method according to any one of claims 1 to 14; or the method according to any one of claims 15 to 24 is implemented.

30. A computer program product, characterized in that The method comprises a computer program code, which, when executed, implements the method according to any one of claims 1 to 14; or the method according to any one of claims 15 to 24.

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